new index	atom name	original index
1	C	10
2	C	6
3	C	7
4	C	3
5	C	4
6	C	1
7	C	5
8	N	9
9	N	2
10	O	8
11	H	18
12	H	14
13	H	15
14	H	12
15	H	13
16	H	16
17	H	17
18	H	11
